Oct 3, 2012 12:00am PDT
is in decline. researchers at the australian institute of marine science say the reef has lost half of its coral cover over the past 27 years. there are multiple causes, including a destructive kind of starfish shown here. we look at what's behind it and what's at stake-- in australia and around the world-- with nancy knowlton, a coral reef biologist and a chair of marine science at the smithsonian national museum of natural history here in washington. welcome. >> thanks. how has all of this coral died off? do we know what's causing it? is it all that... >> it's not all the star fish. the star fish is about 42%. typhoons, big strong storms another 48% and then coral bleaching is the remaining 10% which is caused whenever the water gets too hot. >> ifill: so this is human causedded? >> yes. most of it is human caused. i mean a coral reef naturally goes through cycles of up and down. but it shouldn't be declining by half over course of 27 years. >> ifill: i feel like we have talked before about the declining coral cover. but not... but i'm wondering whether it's now picking up speed or whether thi
Oct 4, 2012 12:00pm EDT
of systems all of which are so important to the asia-pacific region. and we'll continue all of our science and technology investments across the board. the third reason why we can carry out the rebalance is that we're shifting our posture forward and into the asia-pacific region; that is, not what we have, but where we put it is also changing. by 2020 we will have shifted 60% of our naval assets to the pacific. that's an historic change for the be united states navy. the marine corps will have up to 2500 marines on rotation in australia, we will have four la toral combat ships stationed forward in singapore, i was just aboard both in san diego last week, and we'll proceed fully to build out our military presence on guam and surrounding areas, which is an important strategic hub for the western pacific. we will begin to rotate b-1 bombers into the region augmenting the b-52 bombers already on continuous rotation. we've already deployed f-22s to kadima air force base in japan, and we will deploy the f-35 joint strike fighter to the region. differently, we're sending our newest assets to the
Oct 3, 2012 12:00pm EDT
the most government funded research to push the boundaries of science and technology so our best innovators and the entrepreneurs could pluck them and start these companies. if you think about that is a formula for success, and education we now -- well, roughly 30% of high school students drop out of high school. we used to lead the world in college graduates coming out of high school. we no longer do that. on infrastructure, according to the american society of civil engineers we are now $2 trillion in deficit in terms of infrastructure. immigration we have a policy to get a great education and then get the hell out of our country. we are fighting on the simplest h-1b issues that are so vital for our future strength. fourth, the rules for incentivizing risk-taking and preventing recklessness. i don't think that we have in any way remedied that the way we want and on the government funded research if it looks like an ekg heading for a heart attack. i don't know if they are relative to what. all i know is in the things that have historically made us great, on each one of those i see us not g
Oct 3, 2012 5:00pm EDT
and every like to possessors of political science speculating in the abstract about the nature of international politics. you may wonder why it was because of fact the only thing worth talking about was at that point whether we could establish enough confidence between the two of us to risky adventure that opening to china representative for both sides shown that point of view, from a domestic, political point of view. and even though the subject of president nixon to china, was the reason why i came, neither side mentioned it until about 12 hours before. i mention not only to say i believe it should be followed to get your object it straight before you start haggling about details. we had no choice. now every generation and then was a great reform and i cannot think of any other country where you could definitely say that the evolution that we have seen in the last 30 years, depending on the vision of one man, as in the case of no other chinese who had the vision and the courage to move china into the imaginative system and to engage the reform and instituting a market system.